/*
 * @author  xamidev <xamidev@riseup.net>
 * @brief   Virtual filesystem layer
 * @license GPL-3.0-only
 */

/*
 PepperOS will not work like the Unix-based mountpoint approach,
 but rather like what Windows does. Filesystems will be separated
 into "drives", and each drive will have a number assigned.
 */

#ifndef VFS_H
#define VFS_H

#include <limine.h>
#include <stddef.h>
#include <stdint.h>

typedef enum
{
    DRIVE_TAR
} DriveType;

struct drive
{
    unsigned int id;
    DriveType type;
    struct fs_operations* operations;

    struct drive* next;
};

struct fs_operations
{
    int (*open)(const char* path, int flags);
    int (*close)(int fd);
    int64_t (*read)(int fd, char* buf, size_t count);
    int64_t (*write)(int fd, char* buf, size_t count);
};

int vfs_mount(struct limine_file* file, DriveType type);
int vfs_umount(unsigned int drive_id);

int vfs_open(const char* path, int flags);
int vfs_close(int fd);
int64_t vfs_read(int fd, char* buf, size_t count);
int64_t vfs_write(int fd, const char* buf, size_t count);

#endif